dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <assert.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "ddrawgdi.h"
  32 #include "wine/winbase16.h"
  33
  34 #include "gdi_private.h"
  35 #include "wine/unicode.h"
  36 #include "wine/list.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  40
  41 struct graphics_driver
  42 {
  43     struct list                entry;
  44     HMODULE                    module;  /* module handle */
  45     const struct gdi_dc_funcs *funcs;
  46 };
  47
  48 static struct list drivers = LIST_INIT( drivers );
  49 static struct graphics_driver *display_driver;
  50
  51 const struct gdi_dc_funcs *font_driver = NULL;
  52
  53 static CRITICAL_SECTION driver_section;
  54 static CRITICAL_SECTION_DEBUG critsect_debug =
  55 {
  56     0, 0, &driver_section,
  57     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  58       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  59 };
  60 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  61
  62 /**********************************************************************
  63  *           create_driver
  64  *
  65  * Allocate and fill the driver structure for a given module.
  66  */
  67 static struct graphics_driver *create_driver( HMODULE module )
  68 {
  69     static const struct gdi_dc_funcs empty_funcs;
  70     const struct gdi_dc_funcs *funcs = NULL;
  71     struct graphics_driver *driver;
  72
  73     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  74     driver->module = module;
  75
  76     if (module)
  77     {
  78         const struct gdi_dc_funcs * (CDECL *wine_get_gdi_driver)( unsigned int version );
  79
  80         if ((wine_get_gdi_driver = (void *)GetProcAddress( module, "wine_get_gdi_driver" )))
  81             funcs = wine_get_gdi_driver( WINE_GDI_DRIVER_VERSION );
  82     }
  83     if (!funcs) funcs = &empty_funcs;
  84     driver->funcs = funcs;
  85     return driver;
  86 }
  87
  88
  89 /**********************************************************************
  90  *           get_display_driver
  91  *
  92  * Special case for loading the display driver: get the name from the config file
  93  */
  94 static const struct gdi_dc_funcs *get_display_driver(void)
  95 {
  96     if (!display_driver)
  97     {
  98         HMODULE user32 = LoadLibraryA( "user32.dll" );
  99         HWND (WINAPI *pGetDesktopWindow)(void) = (void *)GetProcAddress( user32, "GetDesktopWindow" );
 100
 101         if (!pGetDesktopWindow() || !display_driver)
 102         {
 103             WARN( "failed to load the display driver, falling back to null driver\n" );
 104             __wine_set_display_driver( 0 );
 105         }
 106     }
 107     return display_driver->funcs;
 108 }
 109
 110
 111 /**********************************************************************
 112  *           DRIVER_load_driver
 113  */
 114 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
 115 {
 116     HMODULE module;
 117     struct graphics_driver *driver, *new_driver;
 118     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 119     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 120
 121     /* display driver is a special case */
 122     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
 123
 124     if ((module = GetModuleHandleW( name )))
 125     {
 126         if (display_driver && display_driver->module == module) return display_driver->funcs;
 127
 128         EnterCriticalSection( &driver_section );
 129         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 130         {
 131             if (driver->module == module) goto done;
 132         }
 133         LeaveCriticalSection( &driver_section );
 134     }
 135
 136     if (!(module = LoadLibraryW( name ))) return NULL;
 137
 138     if (!(new_driver = create_driver( module )))
 139     {
 140         FreeLibrary( module );
 141         return NULL;
 142     }
 143
 144     /* check if someone else added it in the meantime */
 145     EnterCriticalSection( &driver_section );
 146     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 147     {
 148         if (driver->module != module) continue;
 149         FreeLibrary( module );
 150         HeapFree( GetProcessHeap(), 0, new_driver );
 151         goto done;
 152     }
 153     driver = new_driver;
 154     list_add_head( &drivers, &driver->entry );
 155     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 156 done:
 157     LeaveCriticalSection( &driver_section );
 158     return driver->funcs;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           __wine_set_display_driver    (GDI32.@)
 164  */
 165 void CDECL __wine_set_display_driver( HMODULE module )
 166 {
 167     struct graphics_driver *driver;
 168
 169     if (!(driver = create_driver( module )))
 170     {
 171         ERR( "Could not create graphics driver\n" );
 172         ExitProcess(1);
 173     }
 174     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 175         HeapFree( GetProcessHeap(), 0, driver );
 176 }
 177
 178
 179 static INT nulldrv_AbortDoc( PHYSDEV dev )
 180 {
 181     return 0;
 182 }
 183
 184 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 185                          INT xstart, INT ystart, INT xend, INT yend )
 186 {
 187     return TRUE;
 188 }
 189
 190 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 191                            INT xstart, INT ystart, INT xend, INT yend )
 192 {
 193     return TRUE;
 194 }
 195
 196 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 197 {
 198     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 199     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 200 }
 201
 202 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 203                               LPCWSTR output, const DEVMODEW *devmode )
 204 {
 205     assert(0);  /* should never be called */
 206     return FALSE;
 207 }
 208
 209 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 210 {
 211     assert(0);  /* should never be called */
 212     return TRUE;
 213 }
 214
 215 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 216 {
 217     return TRUE;
 218 }
 219
 220 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 221                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 222 {
 223     return -1;
 224 }
 225
 226 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 227 {
 228     return TRUE;
 229 }
 230
 231 static INT nulldrv_EndDoc( PHYSDEV dev )
 232 {
 233     return 0;
 234 }
 235
 236 static INT nulldrv_EndPage( PHYSDEV dev )
 237 {
 238     return 0;
 239 }
 240
 241 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 242 {
 243     return TRUE;
 244 }
 245
 246 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 247 {
 248     return -1;
 249 }
 250
 251 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 252                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 253 {
 254     return -1;
 255 }
 256
 257 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 258                                     INT out_size, void *out_data )
 259 {
 260     return 0;
 261 }
 262
 263 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 264 {
 265     return TRUE;
 266 }
 267
 268 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 269 {
 270     return FALSE;
 271 }
 272
 273 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 274 {
 275     return FALSE;
 276 }
 277
 278 static BOOL nulldrv_GdiRealizationInfo( PHYSDEV dev, void *info )
 279 {
 280     return FALSE;
 281 }
 282
 283 static UINT nulldrv_GetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 284 {
 285     return DCB_RESET;
 286 }
 287
 288 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 289 {
 290     return FALSE;
 291 }
 292
 293 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 294 {
 295     return FALSE;
 296 }
 297
 298 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 299 {
 300     return FALSE;
 301 }
 302
 303 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 304 {
 305     switch (cap)  /* return meaningful values for some entries */
 306     {
 307     case HORZRES:     return 640;
 308     case VERTRES:     return 480;
 309     case BITSPIXEL:   return 1;
 310     case PLANES:      return 1;
 311     case NUMCOLORS:   return 2;
 312     case ASPECTX:     return 36;
 313     case ASPECTY:     return 36;
 314     case ASPECTXY:    return 51;
 315     case LOGPIXELSX:  return 72;
 316     case LOGPIXELSY:  return 72;
 317     case SIZEPALETTE: return 2;
 318     case TEXTCAPS:    return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 319                               TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 320                               TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 321     default:          return 0;
 322     }
 323 }
 324
 325 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 326 {
 327     SetLastError( ERROR_INVALID_PARAMETER );
 328     return FALSE;
 329 }
 330
 331 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 332 {
 333     return FALSE;
 334 }
 335
 336 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 337 {
 338     return 0;
 339 }
 340
 341 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 342 {
 343     return GDI_ERROR;
 344 }
 345
 346 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 347                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 348 {
 349     return GDI_ERROR;
 350 }
 351
 352 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 353 {
 354     return FALSE;
 355 }
 356
 357 static DWORD nulldrv_GetImage( PHYSDEV dev, BITMAPINFO *info, struct gdi_image_bits *bits,
 358                                struct bitblt_coords *src )
 359 {
 360     return ERROR_NOT_SUPPORTED;
 361 }
 362
 363 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 364 {
 365     return 0;
 366 }
 367
 368 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 369 {
 370     return 0;
 371 }
 372
 373 static UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries )
 374 {
 375     return 0;
 376 }
 377
 378 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 379 {
 380     return DEFAULT_CHARSET;
 381 }
 382
 383 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT *dx )
 384 {
 385     return FALSE;
 386 }
 387
 388 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT *dx )
 389 {
 390     return FALSE;
 391 }
 392
 393 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 394 {
 395     INT ret = 0;
 396     LOGFONTW font;
 397     HFONT hfont = GetCurrentObject( dev->hdc, OBJ_FONT );
 398
 399     if (GetObjectW( hfont, sizeof(font), &font ))
 400     {
 401         ret = strlenW( font.lfFaceName ) + 1;
 402         if (name)
 403         {
 404             lstrcpynW( name, font.lfFaceName, size );
 405             ret = min( size, ret );
 406         }
 407     }
 408     return ret;
 409 }
 410
 411 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 412 {
 413     return FALSE;
 414 }
 415
 416 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 417 {
 418     return TRUE;
 419 }
 420
 421 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 422 {
 423     return TRUE;
 424 }
 425
 426 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 427 {
 428     return TRUE;
 429 }
 430
 431 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 432 {
 433     return TRUE;
 434 }
 435
 436 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 437                          INT xstart, INT ystart, INT xend, INT yend )
 438 {
 439     return TRUE;
 440 }
 441
 442 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 443 {
 444     return TRUE;
 445 }
 446
 447 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 448 {
 449     return TRUE;
 450 }
 451
 452 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 453 {
 454     INT counts[1] = { count };
 455
 456     return PolyPolygon( dev->hdc, points, counts, 1 );
 457 }
 458
 459 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 460 {
 461     DWORD counts[1] = { count };
 462
 463     if (count < 0) return FALSE;
 464     return PolyPolyline( dev->hdc, points, counts, 1 );
 465 }
 466
 467 static DWORD nulldrv_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
 468                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 469                                struct bitblt_coords *dst, DWORD rop )
 470 {
 471     return ERROR_SUCCESS;
 472 }
 473
 474 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 475 {
 476     return 0;
 477 }
 478
 479 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 480 {
 481     return 0;
 482 }
 483
 484 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 485 {
 486     return TRUE;
 487 }
 488
 489 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 490 {
 491     return 0;
 492 }
 493
 494 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 495                                INT ell_width, INT ell_height )
 496 {
 497     return TRUE;
 498 }
 499
 500 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 501 {
 502     return bitmap;
 503 }
 504
 505 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, const struct brush_pattern *pattern )
 506 {
 507     return brush;
 508 }
 509
 510 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 511 {
 512     return palette;
 513 }
 514
 515 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen, const struct brush_pattern *pattern )
 516 {
 517     return pen;
 518 }
 519
 520 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 521 {
 522     return dir;
 523 }
 524
 525 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 526 {
 527     return color;
 528 }
 529
 530 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 531 {
 532     return mode;
 533 }
 534
 535 static UINT nulldrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 536 {
 537     return DCB_RESET;
 538 }
 539
 540 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 541 {
 542     return color;
 543 }
 544
 545 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 546 {
 547     return color;
 548 }
 549
 550 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
 551 {
 552 }
 553
 554 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 555 {
 556     return layout;
 557 }
 558
 559 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 560 {
 561     SetLastError( ERROR_INVALID_PARAMETER );
 562     return FALSE;
 563 }
 564
 565 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 566 {
 567     return flags;
 568 }
 569
 570 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 571 {
 572     return color;
 573 }
 574
 575 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 576 {
 577     return mode;
 578 }
 579
 580 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 581 {
 582     return rop;
 583 }
 584
 585 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 586 {
 587     return mode;
 588 }
 589
 590 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 591 {
 592     return mode;
 593 }
 594
 595 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 596 {
 597     return align;
 598 }
 599
 600 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 601 {
 602     return extra;
 603 }
 604
 605 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 606 {
 607     return color;
 608 }
 609
 610 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 611 {
 612     return TRUE;
 613 }
 614
 615 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 616 {
 617     return 0;
 618 }
 619
 620 static INT nulldrv_StartPage( PHYSDEV dev )
 621 {
 622     return 1;
 623 }
 624
 625 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 626 {
 627     return FALSE;
 628 }
 629
 630 static struct opengl_funcs *nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 631 {
 632     return (void *)-1;
 633 }
 634
 635 const struct gdi_dc_funcs null_driver =
 636 {
 637     nulldrv_AbortDoc,                   /* pAbortDoc */
 638     nulldrv_AbortPath,                  /* pAbortPath */
 639     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 640     nulldrv_AngleArc,                   /* pAngleArc */
 641     nulldrv_Arc,                        /* pArc */
 642     nulldrv_ArcTo,                      /* pArcTo */
 643     nulldrv_BeginPath,                  /* pBeginPath */
 644     nulldrv_BlendImage,                 /* pBlendImage */
 645     nulldrv_Chord,                      /* pChord */
 646     nulldrv_CloseFigure,                /* pCloseFigure */
 647     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 648     nulldrv_CreateDC,                   /* pCreateDC */
 649     nulldrv_DeleteDC,                   /* pDeleteDC */
 650     nulldrv_DeleteObject,               /* pDeleteObject */
 651     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 652     nulldrv_Ellipse,                    /* pEllipse */
 653     nulldrv_EndDoc,                     /* pEndDoc */
 654     nulldrv_EndPage,                    /* pEndPage */
 655     nulldrv_EndPath,                    /* pEndPath */
 656     nulldrv_EnumFonts,                  /* pEnumFonts */
 657     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 658     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 659     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 660     nulldrv_ExtEscape,                  /* pExtEscape */
 661     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 662     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 663     nulldrv_ExtTextOut,                 /* pExtTextOut */
 664     nulldrv_FillPath,                   /* pFillPath */
 665     nulldrv_FillRgn,                    /* pFillRgn */
 666     nulldrv_FlattenPath,                /* pFlattenPath */
 667     nulldrv_FontIsLinked,               /* pFontIsLinked */
 668     nulldrv_FrameRgn,                   /* pFrameRgn */
 669     nulldrv_GdiComment,                 /* pGdiComment */
 670     nulldrv_GdiRealizationInfo,         /* pGdiRealizationInfo */
 671     nulldrv_GetBoundsRect,              /* pGetBoundsRect */
 672     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 673     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 674     nulldrv_GetCharWidth,               /* pGetCharWidth */
 675     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 676     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 677     nulldrv_GetFontData,                /* pGetFontData */
 678     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 679     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 680     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 681     nulldrv_GetICMProfile,              /* pGetICMProfile */
 682     nulldrv_GetImage,                   /* pGetImage */
 683     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 684     nulldrv_GetNearestColor,            /* pGetNearestColor */
 685     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 686     nulldrv_GetPixel,                   /* pGetPixel */
 687     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 688     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 689     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 690     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 691     nulldrv_GetTextFace,                /* pGetTextFace */
 692     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 693     nulldrv_GradientFill,               /* pGradientFill */
 694     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 695     nulldrv_InvertRgn,                  /* pInvertRgn */
 696     nulldrv_LineTo,                     /* pLineTo */
 697     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 698     nulldrv_MoveTo,                     /* pMoveTo */
 699     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 700     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 701     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 702     nulldrv_PaintRgn,                   /* pPaintRgn */
 703     nulldrv_PatBlt,                     /* pPatBlt */
 704     nulldrv_Pie,                        /* pPie */
 705     nulldrv_PolyBezier,                 /* pPolyBezier */
 706     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 707     nulldrv_PolyDraw,                   /* pPolyDraw */
 708     nulldrv_PolyPolygon,                /* pPolyPolygon */
 709     nulldrv_PolyPolyline,               /* pPolyPolyline */
 710     nulldrv_Polygon,                    /* pPolygon */
 711     nulldrv_Polyline,                   /* pPolyline */
 712     nulldrv_PolylineTo,                 /* pPolylineTo */
 713     nulldrv_PutImage,                   /* pPutImage */
 714     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 715     nulldrv_RealizePalette,             /* pRealizePalette */
 716     nulldrv_Rectangle,                  /* pRectangle */
 717     nulldrv_ResetDC,                    /* pResetDC */
 718     nulldrv_RestoreDC,                  /* pRestoreDC */
 719     nulldrv_RoundRect,                  /* pRoundRect */
 720     nulldrv_SaveDC,                     /* pSaveDC */
 721     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 722     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 723     nulldrv_SelectBitmap,               /* pSelectBitmap */
 724     nulldrv_SelectBrush,                /* pSelectBrush */
 725     nulldrv_SelectClipPath,             /* pSelectClipPath */
 726     nulldrv_SelectFont,                 /* pSelectFont */
 727     nulldrv_SelectPalette,              /* pSelectPalette */
 728     nulldrv_SelectPen,                  /* pSelectPen */
 729     nulldrv_SetArcDirection,            /* pSetArcDirection */
 730     nulldrv_SetBkColor,                 /* pSetBkColor */
 731     nulldrv_SetBkMode,                  /* pSetBkMode */
 732     nulldrv_SetBoundsRect,              /* pSetBoundsRect */
 733     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 734     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 735     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 736     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 737     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 738     nulldrv_SetLayout,                  /* pSetLayout */
 739     nulldrv_SetMapMode,                 /* pSetMapMode */
 740     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 741     nulldrv_SetPixel,                   /* pSetPixel */
 742     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 743     nulldrv_SetROP2,                    /* pSetROP2 */
 744     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 745     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 746     nulldrv_SetTextAlign,               /* pSetTextAlign */
 747     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 748     nulldrv_SetTextColor,               /* pSetTextColor */
 749     nulldrv_SetTextJustification,       /* pSetTextJustification */
 750     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 751     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 752     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 753     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 754     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 755     nulldrv_StartDoc,                   /* pStartDoc */
 756     nulldrv_StartPage,                  /* pStartPage */
 757     nulldrv_StretchBlt,                 /* pStretchBlt */
 758     nulldrv_StretchDIBits,              /* pStretchDIBits */
 759     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 760     nulldrv_StrokePath,                 /* pStrokePath */
 761     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 762     nulldrv_WidenPath,                  /* pWidenPath */
 763     nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 764
 765     GDI_PRIORITY_NULL_DRV               /* priority */
 766 };
 767
 768
 769 /*****************************************************************************
 770  *      DRIVER_GetDriverName
 771  *
 772  */
 773 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 774 {
 775     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 776     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 777     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 778     static const WCHAR empty_strW[] = { 0 };
 779     WCHAR *p;
 780
 781     /* display is a special case */
 782     if (!strcmpiW( device, displayW ) ||
 783         !strcmpiW( device, display1W ))
 784     {
 785         lstrcpynW( driver, displayW, size );
 786         return TRUE;
 787     }
 788
 789     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 790     if(!size) {
 791         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 792         return FALSE;
 793     }
 794     p = strchrW(driver, ',');
 795     if(!p)
 796     {
 797         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 798         return FALSE;
 799     }
 800     *p = 0;
 801     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 802     return TRUE;
 803 }
 804
 805
 806 /***********************************************************************
 807  *           GdiConvertToDevmodeW    (GDI32.@)
 808  */
 809 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 810 {
 811     DEVMODEW *dmW;
 812     WORD dmW_size, dmA_size;
 813
 814     dmA_size = dmA->dmSize;
 815
 816     /* this is the minimal dmSize that XP accepts */
 817     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 818         return NULL;
 819
 820     if (dmA_size > sizeof(DEVMODEA))
 821         dmA_size = sizeof(DEVMODEA);
 822
 823     dmW_size = dmA_size + CCHDEVICENAME;
 824     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 825         dmW_size += CCHFORMNAME;
 826
 827     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 828     if (!dmW) return NULL;
 829
 830     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 831                                    dmW->dmDeviceName, CCHDEVICENAME);
 832     /* copy slightly more, to avoid long computations */
 833     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 834
 835     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 836     {
 837         if (dmA->dmFields & DM_FORMNAME)
 838             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 839                                        dmW->dmFormName, CCHFORMNAME);
 840         else
 841             dmW->dmFormName[0] = 0;
 842
 843         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 844             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 845     }
 846
 847     if (dmA->dmDriverExtra)
 848         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 849
 850     dmW->dmSize = dmW_size;
 851
 852     return dmW;
 853 }
 854
 855
 856 /*****************************************************************************
 857  *      @ [GDI32.100]
 858  *
 859  * This should thunk to 16-bit and simply call the proc with the given args.
 860  */
 861 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 862                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 863 {
 864     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 865     return -1;
 866 }
 867
 868 /*****************************************************************************
 869  *      @ [GDI32.101]
 870  *
 871  * This should load the correct driver for lpszDevice and calls this driver's
 872  * ExtDeviceModePropSheet proc.
 873  *
 874  * Note: The driver calls a callback routine for each property sheet page; these
 875  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 876  * The layout of this structure is:
 877  *
 878  * struct
 879  * {
 880  *   DWORD  nPages;
 881  *   DWORD  unknown;
 882  *   HPROPSHEETPAGE  pages[10];
 883  * };
 884  */
 885 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 886                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 887 {
 888     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 889     return -1;
 890 }
 891
 892 /*****************************************************************************
 893  *      @ [GDI32.102]
 894  *
 895  * This should load the correct driver for lpszDevice and call this driver's
 896  * ExtDeviceMode proc.
 897  *
 898  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 899  */
 900 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 901                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 902                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 903                                     LPSTR lpszProfile, DWORD fwMode )
 904 {
 905     WCHAR deviceW[300];
 906     WCHAR bufW[300];
 907     char buf[300];
 908     HDC hdc;
 909     DC *dc;
 910     INT ret = -1;
 911
 912     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 913           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 914
 915     if (!lpszDevice) return -1;
 916     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 917
 918     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 919
 920     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 921
 922     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 923
 924     if ((dc = get_dc_ptr( hdc )))
 925     {
 926         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
 927         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 928                                               lpdmInput, lpszProfile, fwMode );
 929         release_dc_ptr( dc );
 930     }
 931     DeleteDC( hdc );
 932     return ret;
 933 }
 934
 935 /****************************************************************************
 936  *      @ [GDI32.103]
 937  *
 938  * This should load the correct driver for lpszDevice and calls this driver's
 939  * AdvancedSetupDialog proc.
 940  */
 941 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 942                                           LPDEVMODEA devin, LPDEVMODEA devout )
 943 {
 944     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 945     return -1;
 946 }
 947
 948 /*****************************************************************************
 949  *      @ [GDI32.104]
 950  *
 951  * This should load the correct driver for lpszDevice and calls this driver's
 952  * DeviceCapabilities proc.
 953  *
 954  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 955  */
 956 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 957                                            WORD fwCapability, LPSTR lpszOutput,
 958                                            LPDEVMODEA lpdm )
 959 {
 960     WCHAR deviceW[300];
 961     WCHAR bufW[300];
 962     char buf[300];
 963     HDC hdc;
 964     DC *dc;
 965     INT ret = -1;
 966
 967     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 968
 969     if (!lpszDevice) return -1;
 970     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 971
 972     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 973
 974     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 975
 976     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 977
 978     if ((dc = get_dc_ptr( hdc )))
 979     {
 980         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
 981         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 982                                                    fwCapability, lpszOutput, lpdm );
 983         release_dc_ptr( dc );
 984     }
 985     DeleteDC( hdc );
 986     return ret;
 987 }
 988
 989
 990 /************************************************************************
 991  *             Escape  [GDI32.@]
 992  */
 993 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 994 {
 995     INT ret;
 996     POINT *pt;
 997
 998     switch (escape)
 999     {
1000     case ABORTDOC:
1001         return AbortDoc( hdc );
1002
1003     case ENDDOC:
1004         return EndDoc( hdc );
1005
1006     case GETPHYSPAGESIZE:
1007         pt = out_data;
1008         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1009         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1010         return 1;
1011
1012     case GETPRINTINGOFFSET:
1013         pt = out_data;
1014         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1015         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1016         return 1;
1017
1018     case GETSCALINGFACTOR:
1019         pt = out_data;
1020         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1021         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1022         return 1;
1023
1024     case NEWFRAME:
1025         return EndPage( hdc );
1026
1027     case SETABORTPROC:
1028         return SetAbortProc( hdc, (ABORTPROC)in_data );
1029
1030     case STARTDOC:
1031         {
1032             DOCINFOA doc;
1033             char *name = NULL;
1034
1035             /* in_data may not be 0 terminated so we must copy it */
1036             if (in_data)
1037             {
1038                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1039                 memcpy( name, in_data, in_count );
1040                 name[in_count] = 0;
1041             }
1042             /* out_data is actually a pointer to the DocInfo structure and used as
1043              * a second input parameter */
1044             if (out_data) doc = *(DOCINFOA *)out_data;
1045             else
1046             {
1047                 doc.cbSize = sizeof(doc);
1048                 doc.lpszOutput = NULL;
1049                 doc.lpszDatatype = NULL;
1050                 doc.fwType = 0;
1051             }
1052             doc.lpszDocName = name;
1053             ret = StartDocA( hdc, &doc );
1054             HeapFree( GetProcessHeap(), 0, name );
1055             if (ret > 0) ret = StartPage( hdc );
1056             return ret;
1057         }
1058
1059     case QUERYESCSUPPORT:
1060         {
1061             DWORD code;
1062
1063             if (in_count < sizeof(SHORT)) return 0;
1064             code = (in_count < sizeof(DWORD)) ? *(const USHORT *)in_data : *(const DWORD *)in_data;
1065             switch (code)
1066             {
1067             case ABORTDOC:
1068             case ENDDOC:
1069             case GETPHYSPAGESIZE:
1070             case GETPRINTINGOFFSET:
1071             case GETSCALINGFACTOR:
1072             case NEWFRAME:
1073             case QUERYESCSUPPORT:
1074             case SETABORTPROC:
1075             case STARTDOC:
1076                 return TRUE;
1077             }
1078             break;
1079         }
1080     }
1081
1082     /* if not handled internally, pass it to the driver */
1083     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1084 }
1085
1086
1087 /******************************************************************************
1088  *              ExtEscape       [GDI32.@]
1089  *
1090  * Access capabilities of a particular device that are not available through GDI.
1091  *
1092  * PARAMS
1093  *    hdc         [I] Handle to device context
1094  *    nEscape     [I] Escape function
1095  *    cbInput     [I] Number of bytes in input structure
1096  *    lpszInData  [I] Pointer to input structure
1097  *    cbOutput    [I] Number of bytes in output structure
1098  *    lpszOutData [O] Pointer to output structure
1099  *
1100  * RETURNS
1101  *    Success: >0
1102  *    Not implemented: 0
1103  *    Failure: <0
1104  */
1105 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1106                       INT cbOutput, LPSTR lpszOutData )
1107 {
1108     PHYSDEV physdev;
1109     INT ret;
1110     DC * dc = get_dc_ptr( hdc );
1111
1112     if (!dc) return 0;
1113     update_dc( dc );
1114     physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1115     ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1116     release_dc_ptr( dc );
1117     return ret;
1118 }
1119
1120
1121 /*******************************************************************
1122  *      DrawEscape [GDI32.@]
1123  *
1124  *
1125  */
1126 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1127 {
1128     FIXME("DrawEscape, stub\n");
1129     return 0;
1130 }
1131
1132 /*******************************************************************
1133  *      NamedEscape [GDI32.@]
1134  */
1135 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1136                         INT cbOutput, LPSTR lpszOutData )
1137 {
1138     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1139           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1140           lpszOutData);
1141     return 0;
1142 }
1143
1144 /*******************************************************************
1145  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1146  *      GdiEntry13                       [GDI32.@]
1147  */
1148 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1149 {
1150     static int warn_once;
1151
1152     if (!warn_once++)
1153         FIXME("stub\n");
1154     return 0;
1155 }